Implementation file definition, plz?

What does that mean, anyone have a definition or example?

Honestly I do not know what the hell you are asking.. but ill try and answer anyways...

Code:

---

//Functions.h is a Specification File
void calcSalary(int , double );

---

the above is an example of a Specification File declaration.

Code:

---

//Functions.cpp is an Implementation File
void calcSalary(int hours, double wage)
  {
    cout << "Salary is " << hours * wage;
  return ;
  }

---

the above is an example of a Implementation File definition..

is this what u r asking for? or something completly different?